Aquamaniac
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The last price I got for a mix in Perth was $180 for a set of doubles............
How open do you keep your iso valve?
- Thread starter MASS-Diver
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The last price I got for a mix in Perth was $180 for a set of doubles............
Dryglove
Contributor
Yikes!! you gotta be kidding :whoa:
Scubaroo
Contributor
This is what I calculated in July 2002:
http://www.scubaboard.com/showthread.php?s=&threadid=11919
Lends a lot of credibility to the arguments CCR divers use down under to justify spending thousands on a rebreather - a year or two of diving CCR, and they've spent the same amount for the rebreather that an OC diver would have spent on just mix.
SimonN
Guest
Nope.
He is $0.07/litre.
Set of twin 232 bar 12.2L fabers (100cufts) with 16/45 = 232 * 12.2 * 2 * 0.45 * 0.07 = $178.32... and then you have O2 and air on top of that.
To get the same tanks filled with air... $10. With EAN36 ~$20.
A 3L 232 bar diluent bottle filled with 10/50 heliair would cost 232 * 3 *0.5 * 0.07 = $24.36. The CCR divers I know say that will last the about 3 to 6 dives.
So, by using a ccr you are saving about $150 a dive, call it $100 to allow for O2, scrubber and maintenance.
A well known CCR costs $13500 with training, so you will make that back in 135 tech dives. I do about 60 tech dives a year.
I have plans to buy a KISS (~$10000 for the whole 'project').
-BlueHole-
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Would be a bad idea to keep the isolator closed and to open it every 30-40 bars ?
So in case of free flow you would always have one "sure" tank ?
So in case of free flow you would always have one "sure" tank ?
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Yes, it would be a bad idea.
WW
Aquamaniac
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Thats almost as silly as wrapping your bouyancy device up in Deflation Cord................
-BlueHole-
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Could you please expand the argument ?
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Sure, its a bad idea because it adds task loading and fixes a non-existing problem. The argument against doing this is the same as against wearing fully independant doubles.
WW
dtdiver
Contributor
how many turns do your valves take to shut or open?
i am doing my tech training with one that took me about 15 "spins " of the knob to shut it off
trying to complete the shutdown and reopen of the three valves in 1 minute leaves me wheezing
part of my difficulty could be that with short arms i can't get a lot of leverage on them
thanks for any info
dt
i am doing my tech training with one that took me about 15 "spins " of the knob to shut it off
trying to complete the shutdown and reopen of the three valves in 1 minute leaves me wheezing
part of my difficulty could be that with short arms i can't get a lot of leverage on them
thanks for any info
dt
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